2026 Buick Enclave Engine Parts

This table covers the chains that drive the balance shafts. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12696316.

This table covers the Balance Shaft Chain tensioners. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

This group shows a single part: GM GENUINE 12696318.

This table covers the Balance Shaft sprockets. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12696317.

This table covers the camshafts that open the valves. Read more

GM GENUINE supplies both parts for the 2026 Buick Enclave.

This group includes GM GENUINE 12696469 and GM GENUINE 12703038.

This table covers the Circular / Semi-Circular plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

This group shows a single part: GM GENUINE 11546667.

This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

GM GENUINE supplies both parts for the 2026 Buick Enclave.

Part numbers include GM GENUINE 12696548 and GM GENUINE 12737058.

This table covers the Crankcase pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor. Read more

This group shows a single part: GM GENUINE 12741844.

This table covers the crankshafts that turn piston motion into rotation. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12695852.

This table covers the Crankshaft Seal covers. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12736950.

This table covers the gaskets that seal the Crankshaft Seal. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12663435.

This table covers the Cylinder Head Alignment Dowel pins. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12570326.

This table covers the bolts that clamp the cylinder head to the block. Read more

GM GENUINE supplies both parts for the 2026 Buick Enclave.

Listed part numbers: GM GENUINE 11603109 and GM GENUINE 11547740.

This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12740950.

This table covers the Cylinder Head plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

2 Cylinder Head Plug parts for the 2026 Buick Enclave come from GM GENUINE.

Listed part numbers: GM GENUINE 11546667 and GM GENUINE 11588547.

This table covers the Engine Block drain plugs. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 11602951.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

This group shows a single part: GM GENUINE 12586687.

This table covers the Engine Cover grommets. Read more

This group shows a single part: GM GENUINE 12661056.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12695838.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

This group shows a single part: GM GENUINE 12696291.

This table covers the Intake Manifold bolts. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 11548171.

This table covers the Intake Manifold covers. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12740036.

This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12697247.

This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

This group shows a single part: GM GENUINE 42952854.

This table covers the Motor Mount bolts. Read more

GM GENUINE supplies both parts for the 2026 Buick Enclave.

Listed part numbers: GM GENUINE 11547918 and GM GENUINE 11548249.

This table covers the Motor Mount Bracket bolts. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 11546866.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

15 Oil parts for the 2026 Buick Enclave come from 5 brands — MOBIL, LIQUI MOLY, VALVOLINE and 2 other brands. The "Popular" part is ACDELCO 109302.

The Full Synthetic section lists 13 options from LIQUI MOLY, MOBIL, VALVOLINE and 2 other brands — full-synthetic oils. ACDELCO 109302 is listed in this group.

In the High Mileage (>75,000 Miles) grade, MOBIL supplies 2 parts: oils grouped for high-mileage engines. A representative part number is MOBIL 122535.

This table covers the Oil Dipstick tubes. Read more

This group shows a single part: GM GENUINE 12737105.

This table covers the seals at the Oil Dipstick / Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

GM GENUINE supplies the 3 Oil Dipstick / Tube Seal parts for the 2026 Buick Enclave.

Listed part numbers: GM GENUINE 24504031, GM GENUINE 12670252 and GM GENUINE 12736679.

This table covers the drain plugs in the oil pan. Read more

This group shows a single part: GM GENUINE 11602884.

This table covers the caps on the oil filler neck. Read more

This group shows a single part: ACDELCO FC275.

This table covers the gaskets that seal the Oil Filler Cap. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 24100002.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

9 Oil Filter parts for the 2026 Buick Enclave come from 7 brands — WIX, ACDELCO, FVP and 4 other brands. The "Popular" part is ACDELCO PF66.

The Economy section lists 3 options from FVP, PRO-TEC and VARIOUS MFR — the catalog's value-priced group. FVP R0351 is listed in this group.

The High Performance / Heavy Duty section lists 2 options from MOBIL and WIX — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1115A is listed in this group.

In the Standard Replacement grade, ACDELCO, WIX and HASTINGS / BALDWIN supply 4 parts: built to original-equipment specification. A representative part number is ACDELCO PF66.

Listed part numbers: ACDELCO PF66, FVP R0351 and PRO-TEC PXL10351, plus the other parts above.

This table covers the Oil nozzles. Read more

This group shows a single part: GM GENUINE 12733339.

This table covers the oil pans that hold the engine's oil sump. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12731979.

This table covers the Oil Pan bolts. Read more

This group shows a single part: GM GENUINE 11548002.

This table covers the Oil Pump Control Valve solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12696637.

This table covers the gaskets that seal the Oil Pump. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12697068.

This table covers the Oil Temperature senders. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 55494665.

This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo. Read more

GM GENUINE supplies both parts for the 2026 Buick Enclave.

This group includes GM GENUINE 12816021 and GM GENUINE 12816362.

This table covers the Piston Pin retainers. Read more

This group shows a single part: GM GENUINE 01647383.

This table covers the timing chains that keep the cams in time with the crank. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12696322.

This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

This group shows a single part: GM GENUINE 11547061.

This table covers the Timing covers. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12736949.

This table covers the Timing Cover bolts. Read more

This group shows a single part: GM GENUINE 11548002.

This table covers the seals at the Timing Cover. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Timing Cover Seal parts for the 2026 Buick Enclave come from GM GENUINE.

This group includes GM GENUINE 12695868 and GM GENUINE 12704570.

This table covers the crankshaft sprockets that drive the timing chain or belt. Read more

This group shows a single part: GM GENUINE 12696323.

This table covers the turbochargers that compress intake air. Read more

This group shows a single part: GM GENUINE 12745193.

This table covers the Turbocharger Coolant lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early. Read more

This group shows a single part: GM GENUINE 12696385.

This table covers the Turbocharger Diverter / Bypass valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

This group shows a single part: GM GENUINE 12702113.

This table covers the Turbocharger Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12728638.

This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early. Read more

This group shows a single part: GM GENUINE 12695747.

This table covers the Turbocharger Oil Line Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

2 Turbocharger Oil Line Gasket / O-Ring parts for the 2026 Buick Enclave come from GM GENUINE.

Listed part numbers: GM GENUINE 12669556 and GM GENUINE 12697763.

This table covers the Turbocharger Wastegate Solenoid actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

This group shows a single part: GM GENUINE 12736642.

This table covers the Turbocharger Wastegate Solenoid / Actuator Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12728259.

This table covers the Turbocharger Wastegate Solenoid / Actuator retainers. Read more

This group shows a single part: GM GENUINE 12728261.

This table covers the Valve covers. Read more

One part is listed for the 2026 Buick Enclave — GM GENUINE 12736211.

This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: GM GENUINE 12731657.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

This group shows a single part: GM GENUINE 12663277.

This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

This group shows a single part: GM GENUINE 12742385.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

This group shows a single part: GM GENUINE 12747216.